Patent · US Active

System, method and device for monitoring capacitor cells connected in series in a capacitor module

US8773109B2 · kind B2 · utility

0Cited by

20References

21Claims

0Family size

Assignee

FLEXTRONICS INTERNATIONAL KFT. · HU

Inventors

Dirk Herke · Kirchheim unter Teck, DE
Karsten Barth · Bochum, DE
Vit Kocur · Starý Plzenec, CZ

Key dates

Filing date	Apr 28, 2009
Grant date	Jul 8, 2014
Priority date	—
Expiry date	Feb 16, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH02J7/0049
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A system for monitoring a plurality of capacitor cells connected in series in a capacitor module which are used as electrical energy stores in an energy storage device and which can be charged in same by a charge current flowing through all the capacitor cells or discharged by a discharge current. The system includes a measuring unit which can determine the voltages applied to the individual capacitor cells by measuring voltages, an evaluation unit which sets a nominal voltage for the capacitor cells, and at least one discharge branch connectable to each capacitor cell and controllable by a discharge control unit which discharges a respective capacitor cell onto said discharge branch depending upon the set nominal voltage and the applied voltage.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.